Cisco Content Hub - Installing Internal Modules and FRUs
Cisco 2901 Integrated Services Router - Cisco
Cisco 2921 Data Sheet and Software Configuration Guide
IT286 Class: Configuring a CISCO 2900 Series Router - YouTube
Cisco 3900 Series and Cisco 2900 Series Hardware Installation Guide - Overview of the Routers [Cisco 2900 Series Integrated Services Routers] - Cisco
Installation and Configuration Guide for Cisco Services Ready Engine Virtualization Release 2.0 - Installing the Cisco SRE Service Module into the Router [Cisco UCS Express] - Cisco
Cisco Catalyst IR8300 Rugged Series Router - Cisco
Cisco 3900 Series and Cisco 2900 Series Hardware Installation Guide - Overview of the Routers [Cisco 2900 Series Integrated Services Routers] - Cisco